+ # MSVC isn't quite working with libc++ yet, disable it until issues are
+ # fixed.
+ if(NOT MSVC)
+ # libc++ uses the libc++abi target names so libc++abi should be added
+ # first.
+ add_llvm_external_project(libcxxabi)
+ add_llvm_external_project(libcxx)
+ add_llvm_external_project(libunwind)
+ endif()
+ if(NOT LLVM_BUILD_EXTERNAL_COMPILER_RT)